I recently accquired a TBI 350 from a 1987 Chev 2500, VIN K (light duty, only had semi floater 14 bolt). Engine has 137,000km Kilometres. I pulled heads and still has crosshatch on the cylinder walls. I am planning on swapping it into my 89 Caprice. It is a roller block, but none of the holes are drilled for the spider. I could drill them by hand but maybe it would be cheaper to go with a hydraulic tappet? Anyway I am wondering if you can recommend a cam for this engine?

It has dished pistons. Do you think it is*worth running a thinner headgasket to bring the quench to the .035-.045" range and bring up the compression slightly? I am on a budget would like to just regasket & cam swap and then put it into my caprice. Thanks!