Upright headers question

[blittle913]

I have a 30 over 460. Pretty basic, nothing special. Edlebrock performer intake with a 750 Carb. Not sure on cam but I think I was told it has a mild grind, maybe RV but like I said not sure. Anyway, I'm worried about not enough back pressure with uprights. How do I know what to run to keep power and keep my motor safe?

[MR. Horsepower]

2 in primary with 4 in collector we run the on a stock 460 runs fine

[way1bd]

Just get em

[71 Highboy]

we have 17/8 primary w/ 3.5 collectors work greaton our 429

[Orangecrush]

2 in primary with 4 in collector we run the on a stock 460 runs fine

same here with stock 454

[homewrecker john]

hmmm....maybe i went to big..2 1/4 primary and 4" collector

[BAD APPLE]

I think your motor is big enough for that size pipe and collector, any header with a collector will get u enough back pressure

[MidMichiganMudRun]

2 in primary with 4 in collector we run the on a stock 460 runs fine

same here with stock 454