Nismobishi
Well-Known Member
Hi guys,
I have a 1965 Satellite with a 440-3 out of a 1974 motorhome. it has the 213 heads that take the 5/8" peanut spark plugs.
I have been having an ongoing problem for as long as I can remember where the car idles great, sounds great, drives great, but when accelerating heavy or WOT is sputters and jerks then it will eventually clear up and take off.
here are the specs:
440-3
MSD 6al with pro billet distributor with 1 silver spring, 1 blue spring, and the black bushing with initial timing at 18* for a total of 36* all in around 2000 to 2500 rpm, MSD Blaster coil, Taylor 10mm wires, and NGK UR5 spark plugs. (have tried ngk, champion, autolite, and bosh plugs with no change in acceleration).
A&A transmissions brand cross ram manifold (426 Super Stock tribute) http://www.aandatrans.com/Products/...ake-Manifold-(As-Cast-Port)__RMWACRIM-14.aspx
2 Edelbrock 500 cfm manual choke carbs (have tried all 3 accelerator pump positions)
Lunati cam lift .465"/.465" advertised duration 285*/300* duration at .050 tappet lift 228*/235* https://www.jegs.com/i/Lunati/638/33702/10002/-1
213 heads surfaced and shaved
timing gear drive
bored .060 over
compression 9.25:1
Napa brand flat top pistons
hardened valve seats and high pressure valve springs
30/30 crank grind
Hedman headers
I cant seem to find the happy place for timing or maybe this is not a timing problem at all? Maybe too much carburation for this engine? Exhaust smell at idle is a real eye burner even though it idles great.
Any help would be greatly appreciated. I might be able to get a video of the problem tomorrow if it would help.
I have a 1965 Satellite with a 440-3 out of a 1974 motorhome. it has the 213 heads that take the 5/8" peanut spark plugs.
I have been having an ongoing problem for as long as I can remember where the car idles great, sounds great, drives great, but when accelerating heavy or WOT is sputters and jerks then it will eventually clear up and take off.
here are the specs:
440-3
MSD 6al with pro billet distributor with 1 silver spring, 1 blue spring, and the black bushing with initial timing at 18* for a total of 36* all in around 2000 to 2500 rpm, MSD Blaster coil, Taylor 10mm wires, and NGK UR5 spark plugs. (have tried ngk, champion, autolite, and bosh plugs with no change in acceleration).
A&A transmissions brand cross ram manifold (426 Super Stock tribute) http://www.aandatrans.com/Products/...ake-Manifold-(As-Cast-Port)__RMWACRIM-14.aspx
2 Edelbrock 500 cfm manual choke carbs (have tried all 3 accelerator pump positions)
Lunati cam lift .465"/.465" advertised duration 285*/300* duration at .050 tappet lift 228*/235* https://www.jegs.com/i/Lunati/638/33702/10002/-1
213 heads surfaced and shaved
timing gear drive
bored .060 over
compression 9.25:1
Napa brand flat top pistons
hardened valve seats and high pressure valve springs
30/30 crank grind
Hedman headers
I cant seem to find the happy place for timing or maybe this is not a timing problem at all? Maybe too much carburation for this engine? Exhaust smell at idle is a real eye burner even though it idles great.
Any help would be greatly appreciated. I might be able to get a video of the problem tomorrow if it would help.
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