292/508 question

crackedback said
If you don't have a true 10.5:1, advance it more as long as you have clearance....

I install those in stock 340's at 100-101 range.

I think you'll be disappointed. I've swapped those for people, going from a 284 to the 292. The 284 outperformed or was equal to a 292 except for about the last 500 of RPM range.
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^^^^^...Exactly what we found with my old '71 340 cuda, we changed the cam overnight (was eager then!) at the race track from the 484 to 509, put the 484 back in it, ran no better and that was with CR, 3500 stall, 750DP/hdrs etc........the .590 solid that went into it later woke it up!!!