Hey, Y'all,
short version of long story:
Removed 4.3L from 90 GMC 1500. Rebuilt a 350 from a '87 van.
Installed a Comp cam (kit with Gross valve lift Int .434 / Exh .444) flat top pistons, bored .030 over, crank turned .010 under. Approx 10K miles on rebuild, dropped a valve. Have not removed head yet to verify extent of damage. Can't afford to go with vortec / new intake / carb setup, so am looking for least expensive alternative to get it going for a couple of months until I get money to "do it right". What heads should I avoid? Any suggestions on which are best? Should I use new lifters and springs? sigh... i'm such a noob