need bbc plug recommendation

[madness67203]

Hello, I have a 461 bbc, with 049's, stock valves, 10-1, small hyd. cam mild street motor, in a 4dr 78 malibu. I need a few spark plug recommendations. I would like to run on pump gas maybe some octane booster if u guys think it actually works lol. This is my fisrt big block, also might see 100-150 shot at times. thanks guys

[Bob West]

I'd use a stock AC Delco plug R44T I think they are, I used to run those and R43T's when I had cast iron heads on mine. I don't like octane booster, I like the Lucas fuel additive myself, about 9.00 a quart at O'reilly.

[sc racing]

The 454 in my 66 chevelle street car has 145 autolites but I dont know what casting # heads it has.They are 1973 oval port truck heads.Its seems very similar to your motor : about 10-1 comp hyd cam RPM intake etc etc.