Handling issue at high speeds

[Pro Stock John]

So I ordered some Smith Racecraft upper and lower control arms, have 5 degrees of caster built in and they are also adjustable. My buddies who are running mid 8s to high 7s tell me I'll be happy with 6-7 degrees of caster Went with their coil over setup. I'll be ordering a set of Afco front shocks.

I also have a TRZ bump steer kit to install too.

[Pro Stock John]

I need to blow the dust off this thread.

I have some Afco coilover shocks en route. So how these work, the bottom of the shock will slide over a bottom shaft, and the top bolts up like stock. I also have some QA1 tapered springs (300 lb spring rate, 11 inches long).

After I swap out the stuff I installed two years ago (BMR tubular control arms, Viking double adjustable shocks), I'll align it probably myself and then get back out. Looking for a 8.70 / 5.70 1/8 ET.

Car is 3200 without me.

[Pro Stock John]

I asked my buddy (former master tech for Toyota and extremely handy guy) how long he would take to swap the front arms, shocks, and tie rod ends. He said 3 hours.

I'm happy to say I got it all done in 12 lol.

Old:
BMR control arms, not adjustable
Viking stock style shocks
Traditional big coil springs
Stock tie rod ends

New:
Smith Racecraft arms, bottom one is coil over style (5 degrees of caster built in)
Afco shocks, coil over bottom, stock stud style top
QA1 tapered coil springs, 300 lb
TRZ bump steer kit

I need to grease the ball joints, generally set toe (got some toe plates over the weekend), hoping to have local buddy do the alignment I don't feel like spending $400 on the tools and turning plates.

Planning to get back out to the track this month, better my current 9.25@150 with something like a 8.7@155.

[Pro Stock John]

Suspension changes worked great.

Went 5.64@127 1.37 in the 1/8 this past weekend at BG.

[Pro Stock John]

Found a nice shot of my 5.64 (8.75 in the 1/4) run: