Dilema:  I had my 272 rebuilt 3 years ago.  I didn't know much about head combinations, exhaust, etc all I knew was I wanted a Y-block for my truck.  I ended up going with a 272 .030 over, 61 small valve heads, stock exhaust, 2 barrel, stock cam.  Result has been negative.  No power on hills.  Disappointing.

I am toying with 2 solutions:

1# Keep the 272 in the truck and add G-heads with high ratio rockers, Sanderson headers, Mummert intake with 4 barrel, stock steel shim head gasket (deck was not shaved, now has a thicker composite gasket).  Approximate cost 1500.00

#2. Abandon the 272, rebuild 292, G-heads, sanderson headers, Mummert intake, 4 barrel.  Cost around $3000.

Question:  Would it be worth the $1500 to upgrade the 272 or just forget it and rebuild the 292?  I have spent $2500 so far on the 272 and don't know if it is worth another $1500 for the returns I will get.  Appreciate your help.