I am wondering about using a lump head kit on my 250ci engine. The engine will have aftermarket exhaust and intake and TBI EFI.
Can I install these lumps myself? I have watched a video on YouTube, it seems straighforward, but... I have already swapped engine, installed a blower, swapped trans, but never actually worked inside an engine. What are the possibilities of screwing up?
How useful are the lumps on an otherwise internally stock engine, does it require a camshaft?
The truck is a daily driver, I like low to mid range torque.
Thanks for the inputs!


'57 Chevy Suburban; '70 Chevy Impala.