Ask Away! with Jeff Smith: Camshaft and EFI Advice for 540 Big Block Chevy
I’m building a street 540 big block Chevy with a mild hydraulic COMP Thumpr cam, rectangle-port heads, and 9.5:1 compression ratio that looks like a stock L88 to go in […]
Ask Away! with Jeff Smith: Curing Engine Stumble in a Big Block Chevy 454
I just bought a big-block Chevy pickup from my neighbor who has had the truck for years. He’s been tinkering with it but has finally decided it’s smarter than he […]
Mailbag: Why Does My 427 Engine Stop Increasing Power at 4,000 RPM?
You’ve got questions. We’ve got answers. We work with the Summit Racing tech department to tackle your automotive-related conundrums. This week, we’re exploring why a 427 c.i.d. big block Chevy engine […]
Ask Away! with Jeff Smith: Upgrading Valve Springs for Better High-RPM Performance
I’ve got a 454 H.O. crate engine and we installed a small ProCharger centrifugal on the engine to bump the power. I thought this would work well with the engine’s […]