performance curve distributor

Yep I have a stock electronic dist in my boys Dart. I changed the springs and recurved it to get full advance by 1800 rpm. Works good on the street with no ping and great performance. You can weld the slots on some to limit mech advance and add initial or whatever as like was said alot of times you have to try different setups. I picked up a Mallory dist cheap for my 63 and it is nice that the good performance dist has many adjustments so you dont have to weld or anything on it. And I dont use any vacum advance as you dont need or want it when you use a very fast mech advance. I never checked the gas milage but I dont build my muscle cars to get good gas milage anyway. I just build them for the best performance with what I have in them. Ron