Killogy

i just took my car to the track for the first time after getting it all put together. I trapped consistently at 106mph. I think I may be topping out before the end of the track (I don't have a tach hooked up yet so I'm not 100% sure). But anyway, I realize I need to get a better intake manifold for my setup. I'm debating whether to go with the Edelbrock Performer RPM Air Gap or the Victor jr. I know the Victor jr might be a bit overkill but this isn't a street driven car. Anyway, which intake do you think would be best for dragging only and do you think I am really topped out before the end of the track? Setup is my sig.

F-BIRD'88

106MPH is about right for what you have.
If you are using the whole power band of the motor over the 1/4 mile
(correct rear gearing) then the motor will feel "topped out"/used up at the end.
Cause you have reached peak hp rpm.
A vic JR manifold needs a lot of rpm. More compression, more camshaft, bigger carb etc. basicly 4000 to 6500+++ rpm work range.
(wants to be matched up with 4.56 gears 4000+ stall 250+@.050 .530+ lift cam
750-850cfm carb, big open headers 10.5+cr. Some head porting.)

For your car I would suggest a RPM hi rise manifold and larger carb 750cfm DP or VS and a high stall converter. (more overall power in the rpm band you are using now+ stronger top end but with strong mid range torque.)
Your fuel system probably need work too. (volume)

What is the 60ft and 1/4 mile ET? and 1/8th mile ET and mph?

Killogy

60 foot - 2.3
1/8 mile - 8.8
1/4 mile - 13.4
1/4 mile mph - 106.23

I'm going to pick up an air-gap RPM intake and some sticky tires and give it another go next week.