The A-Body With A Job

I like your thinking.

Windage tray = 15 HP on the big end.
Valley pan keeps things cooler, bonus HP.
Timing chain tensioner keeps things in line and snugged up nice. Small cost, nice bennifit.

Speaking of reliablity, exhaust manifolds right?
FWIW, Comp Cams has a line of cams designed to work with exhaust maifolds. Otherwise a nice split duration cam is what you should be looking at.
Know your cruise RPm and have a cam selected to operate in that RPM. Cruise at peak torque for best mileage and throttle response on the road.

Leave the crank be, stock is fine, full groove bearings a nice plus.

:smile: Exhaust Manifolds. To be backed up by X-Pipe, 40 Series Flows - all in 2 1/4" tube all the way back.

Here are the three cams in mind, listed in order of current preference:

CAMSHAFT/LIFTERS:

1)MOPAR PURPLE: $321.85
-Mancini MP Purple Muscle Car 267/276 Dur. - 429/444 Lift Item#MOPP4452783 $193.95
-Mancini MP Hydraulic Item#MOPP3614321 $127.90
OR
2)COMP CAM: $199.95
-Mancini Comp Cam & Lifter Set xe262h Item#COMCL20-222-3 $199.95
OR
3) HUGHES WHIPLASH: $311.00
-Hughes Whiplash Item HUGHMC1326AL-9 $215.00
-Hughes Hydraulic Lifter Item#5001 $5.95 (x16) $96.00

I didn't know there were exhaust manifold specific comp cams.

The mopar-specific comp cams looked more slated to strip/bracket specs with preferred gears of 3.55+ and 2500+ stalls.

RumbleFish, what do you think of my cam choices listed?

I am leaning towards that MP Purple Stick for my needs (medium duration, mild lift, 110 LSA)...