Quote:
Originally Posted by classicswede
1) the factory dizzy can not use the vacuum advance/retard so the curve is now wrong
2) even if you had one without a vac connection the curve is now wrong for the change in air flow
3) modern fuel does not burn the same
4) logic would say with fitting webers you would also have gone for a cam with more lift/duration and a increase in CR further changing the burn
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cross purposes here , it is said it has a 123 distributor which must have been programmed to the present engine specification .. so no problem after all with using the Webers .
In my case of driving "old" cars for the last 47 years both standard and high compression tuned doing over 600,000 miles , i have found that when the unleaded was introduced in the 1980's it indeed was affecting things , hence the Renix mod on some of the 340's , However , today's unleaded is a fine fuel ...