Quote:
Originally Posted by elefantrider
Hey Bart, looks good. Did you open yours up on a machine? You said porting tools. Looks too good & straight for a hand grinder.
My understanding of the log's biggest drawback is the absence of chambers or dividers like found in the RA and Long Branches.
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I did the work with a large hand air grinder that was equipped with a bullet-shaped stone that was about 1-3/4" in diameter or even a tad larger. If I wasn't careful it would start running around inside the walls of the opening, using a large stone inside a round opening was not easy. Even though I was using a fairly ideal grinding tool it was still a lot of work, but it seemed to work out well.
Unfortunately I no longer have access to that tool, but I did at least one set that I still have for future use on a '64 GTO Tri-Power 389 engine. I plan to keep this engine all stock with the exception of some sort of mild cam and a free-flowing 2-1/2" exhaust.