So how fast have you guys gone N/A with them and what weight?

How do they compare to the RHS heads?

Any one ever done back to back comparison on dyno or track with a stock magnum?

Check out the Mopar Action article for the Scat Dak project, I believe they used those heads on their engine and did flow tests on a bunch of heads and ended up going with those....although they didn't flow the best they were the lightest

I forgot about that article, I will have to go look it up. If I remember right they went with aluminum magnums, the R/Ts that just found their way onto my shelf are heavier than a stock set also on my shelf.

Some years ago a friend used them on an IHRA top stock? A body. It's been years ago but it ran high 9's with no comp,.475" lift hyd roller,360 cubes,claims it made 560 or so HP.I bought 2prs from him when he went on to something else.With proper work they are a good choice for some applications.

I ran consistant 7.0's in the 1/8, 11.20's in the 1/4 in my 402 cu in Dakota with 4:30 gears and a .501/.513 hyd roller and 1.7 rockers. They were ported and had the 2.02/1.65 valves. The truck weighted 3100 lbs with me in it.

Ive been 12.23 @ 113 n/a still tuning. Havent had 1 good pass, keep blowing the tires away.4170 lbs.