I was wandering if you could give me the timing specs @.050 for the 402A7LUN camshaft so I can play with my Desk Top dyno. Also Do you recommend a dual or single plane intake for this camshaft?. I am running Large valve Oval port heads mild porting and polish, 10.5:1 comp, 2800 BTE stall 400 turbo 4.11 gears, 150 shot plate system nitrous, 3600lbs. Manual brakes. (no vacuum needed) 50/50 street and strip. If you recommend another camshaft, Let me know!! I need to stay with a solid for budget reasons.

Thanks David

he aint around much anymore probably at www.haroldbrookshire.com (http://www.haroldbrookshire.com) don't have time for the little guys anymore j/k :D

Originally posted by DavidALeonhardt:
I was wandering if you could give me the timing specs @.050 for the 402A7LUN camshaft so I can play with my Desk Top dyno. Also Do you recommend a dual or single plane intake for this camshaft?. I am running Large valve Oval port heads mild porting and polish, 10.5:1 comp, 2800 BTE stall 400 turbo 4.11 gears, 150 shot plate system nitrous, 3600lbs. Manual brakes. (no vacuum needed) 50/50 street and strip. If you recommend another camshaft, Let me know!! I need to stay with a solid for budget reasons.

Thanks David =

288/296, 255/263, .612/.630, 110sep,
104ICL recommended.

I am needing the timing info for @.050 like:
#@BTDC ABDC
BBC ATDC
Is anyone else running this cam?

Originally posted by DavidALeonhardt:
I am needing the timing info for @.050 like:
#@BTDC ABDC
BBC ATDC
Is anyone else running this cam? Here`s what my cam card says:

Duration at .050"...... 255 / 263
Lobe Lift...............3600 / .3706
Lobe Separation..........110

Seat duration at .020..288 / 296
Gross valve lift........612 / .630


Seat Timing INT........39 BTDC / 69 ABDC 104
Seat Timing EXH........81 BBDC / 35 ATDC 116

Valve lash hot.........026" / .026"
Degree Intake lobe to..104 ATDC

Thanks!! That was what I was looking for, David

Harold stops by here all the time. He has been in Bowling Green, Ky for training a lot lately, that is where Holley's headquarters in based. Be patient and he will see this and get to your question.

i'm wondering that seeing as if he's only running a 11" converter and a relatively heavy car why the 402A3 would not be a better choice? it seems as if it would make more torque in the powerband in which he would operate. i would imagine that motor in a street car with a tight converter, 4.10 gears, 2800 stall and performer rpm air gap would be a torque monster on the street and run mid 11's at the track on a properly setup chassis. mike