Originally posted by C9x
It looks like you're asking, "mechanical advance only."

The answer is, "not much."



I know . . . a lot of guys run their cars that way and claim no problems and I would guess for some of them that could be true.
Most times they find out what it's all about when they hit slow traffic on a 100 + degree F. day in the summer.

Surprising how many "no problem" guys pull over puking coolant on the streets.

Did you read the article?
I thought I made it pretty clear, but perhaps not.
Well i can atest to a 4x4 full size jimmy with a 455 olds a tad over 10:1 comp mild cam that runs mechanical advance which will blow the typical LS1 camero off the which we have done several times and go 4 wheelin at lake mcConaughy in 100 degree heat and the temp in the jimmy will hold at 180, im not trying to start a arguement with you just stating hard proven facts that if everything is tuned proper you wont have no problemos