top end problems after overheating

[SUPERTUNE]

Make sure you get a plug on that old 650 pump! With a hole of that size...you'll lose a LOT of line pressure and will contribute to overheating and causing the non-OEM headgasket to fail. I tried them all back in the early limited days when all we could do the limiteds is mill/cut the stock head, couldn't get any aftermarket headgasket to seal very long, at least the oem gasket would hold up to get thru a couple of race weekends.

 

[accbr]

The head still lays flat on the top of the cylinder with no gasket, so I don't think it's warped. This one is milled. I have another stock head if this one is bad. I went to Lowes last night, and got another plug for the hole in the side of the pump. I have another topend I can put on here if I have to.