Roller Rockerarms Slant 6

Those sure look nice but I'm not sure how much of a gain that they have. A couple of guys I used to race slant's with gave me mixed reviews on them. One claimed it was a gain of two tenths. The other claimed it was zero gain on his particular engine and said to save my money.

The 2 tenth gain was on the faster engine. 7.70's in the 1/8 mile. The zero gain was running in the lower 8 second range. It may just be all in the combination like most things.