Recent content by RT/10

31's are a good start on the primary. The secondaries usually need to be bigger (sometimes a lot bigger) from my experience. I'd go quite a bit bigger on the secondary to see if it helps richen it up when you stand on it. Try some orange cams. Their fairly aggressive. The 750 is small for that...

13 at cruise is a little rich IMO. Unless your cam has a bunch of overlap you don't usually need to cruise that rich. And 14.5-15 is way lean when your getting on it. Depending on whether or not your running gas with ethanol your WOT A/F should be in the neighborhood of 12-12.5 to 1. Also sounds...

It's normal for vacuum to go up with RPM at low speeds. At low throttle opening it will keep going up till you get to a point where the throttle blades are quite a ways open (usually over 1/2 way) then it'll start dropping. You said you put an A/F gauge on it. Is it a wideband or narrow band...

What is the total timing and when is it all in by? When you say the idle won't adjust lower I assume you mean you have the idle speed screw adjusted all the way out?? If so make sure the throttle cable isn't limiting it from going all the way back. If the throttle cable isn't offending it sounds...

Ok Darter. Thanks again

It sounds to me like your running out of fuel supply. Does it do it even when the tank is full? If it does it then also you can rule out uncovering the fuel pickup in the tank. If it's ok with a full tank your uncovering the pickup and the only solution is always keep a full tank or put in a...

Thanks for the info guys. Custom, approx how long does it take you to do the metal re-work? Since I haven't done it yet I'll figure twice as long, lol

Has anyone tried to install an A500 into a 73 B-body or know of someone that has? I'm familiar with what's needed to put one in an A-body but a fellow I know asked me to check into installing one in his 73 RR. Do you also have to mod the upper crossmember loop on them or are they big enough for...

The 742 does not use a solid pinion spacer or crush sleeve. A 741 uses a solid pinion spacer and a 489 case uses a crush sleeve. The 742 needs nothing due to the design of the pinion. Do you know the thickness of the shim you need? There's several different ones. I have a few, might have what...

I'm currently going through a 489 3.91 geared unit with a brand new Mopar Perf. sure grip. Should have it done tomorrow or Tuesday. I hot tanked the 489 housing, checked all the bearings. Was told it was just rebuilt with new Timken bearings and it was. Only reason I'm going through it was the...

I've had good luck with Fel-Pro's in the past. Just tried a set of Percy's this time around and have a small leak at the center ports on each head.

Me and the Mrs. go every year. It's not the biggest but it's not small beans either. We always have a good time. Last year I got some killer deals in the swap meet area.

Don't forget roller lifters have bearings. Looks like the ad has been removed. Dang I wanted to dog him about it.:black_eye:

Right on the money. I'll just ad that it's about a 2-3 hour job depending on your garage facilities. Also if you jack it up about 6" higher in the rear the fluid that accumulates in the tail housing will run forward and save making a big mess.

Very few torqueflites revved higher than 4500 rpm before shifting when left in drive. It's because the governor is the control unit that tells it when to shift and even if the throttle pressure linkage is set to full at WOT the governor will over ride it. To make it rev higher you'll need to...