opinion on R3/W8 340 (358ci)

Speaking of headers, what size primaries was it dyno'd with? I suspect a 2"? At least...

That torque curve upstairs is really nice & flat.....That thing will hum with the right converter, probably a custom built 8" for maximum performance in my opinion. Once it's right though, pull the belts tight & hold on. :)


P.S... Oh, and if all the stars align, you may be a little over geared. I'm thinking a 4.88 gear set will still let you pull hard on the top end. I'm looking at low 130's mph & 7500rpms?