Years ago I had a 107 lsa solid cam that Dwayne specced.
A certain cam guy that I hung around with a bit at the time and who sold and specced cams convinced me to try one of his cams( he swore by and likes 112+ cams)
He was well aware of exactly what my combo was. He designed a cam very similar to what I had regards lift and duration( old was 260-266, 623 lift) new was 259/268 620 lift.
Installed new cam per spec, went to the track, and wow….
new cam killed 60 foot and ET. talking about 12-14 in the 1/4.
the only item that didn’t suffer was MPH. In fairness, it was virtually unchanged..
I didnt have a ton of compression(11.5) vert was 5200) and car was heavy 3350.
this was a 416 Eddie headed motor I had swapped the top end off of and went to W5 heads, beginning of the season. Ran it half the season, then in late June made this cam swap.
Conclusions I drew( right or wrong) was that if I had a lot more compression, and a good bit more vert, car might have actually ran as well or quite possibly better, but with what I had, it most definitely didn’t.
I believe wider LSA belongs more on a street car for better idle quality, or a light car, or a car that is going to use a power adder.
narrower LSA cam is more for a head challenged car, class car, etc.
