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I think I have to give additional details. I also knew from old literature that the '68-'71 hp440 was realisticaly rated at 305-315hp. I have the RV2 factory compressor on the engine, but the clutch was not engaged - so it was just idling the A/C/ clutch pulley. Does that rob hp as compared to...

Took the car to a chassis dyno yesterday, haven't seen a dyno showing what rwhp a stock hp 440 makes. Took a couple of videos of the runs, here's one of them: 262.7hp @5108rpm & 477Nm @ 3277rpm (that's 351lbft). If you take into acount a 25% drivetrain loss, that would translate to 350hp &...

Oh, I definitely am :) KG ported a set of 906s, CudaDude2 is hogging out a factory intake for me, and told me that Dwayne accepted to help me with a manifold cam. I am replacing the suspension & hunting a speed related vibration in the trans output/driveshaft, then I am ready to dissasemble...

Thanks everybody for the input. Yeah, I admit it's at least a bit odd to try to be by the book in a place where maybe your car is the only one done like this. However the decision comes from experience when I first tried to decide on the build. I started with f.a.s.t. in mind, then keeping in...

Actually mine is fitted with factory A/C. There is a special version of the Carter, made for A/C, mine is 4637S. Code for non A/C is different. So unfortunately A/C is still not Holley. Perhaps the C bodies, which had standard performance 440s in '68, would split the use of a Carter / Holley...

I am trying to comply to f.a.s.t. rules. So that rules out any carb that was not an option on my make/model/engine/year. Sole exception is that I can use an Edelbrock instead of the Carter, probably because it's almost a replica. So if the 1968 Charger 440 only got the Carter AVS, I am only...

Today I just found out that the 1968 383 had a factory Holley carb option. Can anybody confirm whether the 440 also had a 4bbl Holley carb option? With the ported manifold/heads, the carb becomes a major bottleneck, and I understand that the Holley can be seriously modified on the inside to go...

How about now?

Now for everybody that was curious what Eric's opinion on back cutting the intake valves would yield, here are the results! Cyl.1 is the original flow data, Cyl.2 is the same test done with the back cut. What do you guys think? Everywhere till .600 lift, the back cut wins, with one notable...

Update! Eric has done a back cut on the intake valves, and will do another flow test, to see the differences. I was also pleased doing bussiness with Dave. Fun fact, his last name sounded quite familiar to me, so I found out that his grandfather actually came from Northern Transylvania :) small...

About $2500. That is with all additional work including guides, bigger valves, etc.

33 IMP, yes, shipping to Transylvania for a pair os ESPO HD springs for my Charger was $650 (shipping + customs), so I know I'll get murdered on the heads & the ported iron intake Cudadude2 is doing for me. But on the other hand, all the other vampires are gonna be envious!

... aaand here's the link :)

Many of you may remember a review, and a flow test done by Eric Weingartner on his youtube channel of a pair of CNC ported 440source heads. Seeing that, I instantly thought it would be cool to see how the ported Iron would fare. It would also be great to see how it compares to previously tested...

Thank you so much, for the past hour I am chewing through what you sent me. I will also contact the Auto Service of Old Saybrook - gotta say it has a very nice ring to it!

I couldn't agree more; being geographically isolated from the mopar world with only the internet as a lifeline makes aquiring knowledge that more difficult. When I wrote my first post I set out with a humble approach, and with an openess to have my previous notions rebuked. A great example is...

Good to hear from you Jim, sorry to hear you've left the game. I've also followed the board's advice, and reached out to Dwayne, in his PM he told me he's also done building engines/porting since about 10 years... Do you guys and gals know of a good engine builder, preferably with f.a.s.t...

I actually read those threads some time ago, and found out about KG, thanks for making me remember about them. The thread about the f.a.s.t. 906 head was the one that made me reach out to Jim in the first place. BTW, I tried to contact him both here, and on the *other* site, but his inbox is...

Thanks for the replies guys! That is exactly what I did about a month ago, he has not replied - maybe he's mad at me :) Anybody knows him personally to confirm whether he'd build an engine for me? Are there any other recommended engine builders that would have experience with the stock 906...