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just called and they answered the phone there in california

try 34 total so just set timing at 10* at idle. it might even be detonating at that much timing. the 474 cam has 232 @ .050 plenty big for low 13's. the torker is hurting low end the rpm performer intake with a bigger cfm carb would be a better combo. 26 inch tire for the strip would help too.

the sure grip additive needs to get in there. need to do figure eights in a parking lot to mix it up. the Mopar lube is not as good as the GM and Ford posi lube

never broke in a diff or 727 that were rebuilt.

I have them a lot better than the black ones that were on mine. you might be able to paint the adapter.

Hughes cams are not as fast ramp as comp cams. Hughes cams have a very high lift to duration that is why I shy away from 1.6 rockers. comp cams have a very narrow spread between duration @ .050 and advertise duration more narrow than the Hughes cams. I ran a lot of both cams and Mopar cams over...

yes at a higher rpm you lose lift but at low and mid lift you need to minus the lash off the lift of a solid lifter cam. solid 500 lift minus 15-20 for valve lash = 480 - 485 lift and that is for a tight lash cam.

sorry i don't see any pistons. I would want a light weight forged piston with thin ring pistons with valve notches giving me 9.4 - 9.6 compression without decking the block or milling the heads more than .010 just to square it up if needed and a quench of .035 to .050 and running iron heads so...

I would not run 1.6 rockers with a Hughes cam unless you're just going to do 1/4 miles.

I like high lift as long as the head can use it. there is no downside with lift it helps low end, mid range and top end not like duration which there is always a compromise when going more duration.

i always take mine off for better cooling and make a coarse screen to use to keep stones and what ever out.

selling 16 new variable rate lifters for 383-440. there like the one Hughes Engines sells. I got them a few years back from AMS racing. $ 110.00 plus shipping.

mine was for a 19 spline not sure if that makes a difference. they might have beef yours up more for racing. was it PTC out of Alabama there are different PTC converters one out of Texas.

he didn't believe me about the cross he never heard of it gm and Ford never did that. not sure if he didn't check carefully or didn't check them all at first.

it was 1 thousand undersized.

the last engine i did out of a 1967 imperial had the cross. I told the machine shop to check the crank he said it was fine I told him to check it again and found the number 7 journal was under sized.

one of the crank connecting rod journals had to be turned down to get to specs. they did that to save the crank from the scrap pile.

what piston is that ?

75 cc heads would give you 10.43 compression that would work with alum heads

9.2 compression with aluminum heads will like having about 8.4 compression with iron heads. need a 11 cc dome will give you 10.25 compression just right for the alum heads.