[vetteoz]

if you are going that route moddifying the intake to accept the TPI tthrottle body might be difficult at best. they are too different in size/shape.

There are off the shelf hats from custom makers that fit stock style TB to 4 bbl intake

Plenty have made their own custom hat to add some plenum volume

Or a low profile carb hat on a 4bbl TB

 

[vetteoz]

The first one looks way too tall - but this is the idea..

Is not currently listed but Intake Elbows.com used to make a 4 bbl hat that dropped a TPI/ LTX TB down to same level as TPI one

See top pic RH rear

http://www.intakeelbows.com/

 

[vetteoz]

Here is a big question though...the TPS is adjustable on the C4, and not on the LS style. Do you slot it out or something to make it work for the base idle set????

Prob going to have to slot it for adjustment.

C4 '165 MAF ECM looks for .54V ; key on
The later TPI MAP ( and LTX ) cars take the voltage 1st seen and use that as the base ( throttle closed ) voltage

 

[vetteoz]

Any thoughts on heads/cam to match up to the intake?

No different than any other top end motor.

Claimed benefits of SP intake are more even air distribution over log style intakes ( MR, etc ) that run rich on some runners / lean on others at big revs

Some thoughts on elbow design (long read )
http://www.ls1tech.com/forums/dynam...160-408-w-vic-jr-dyno-s-after-t-b-change.html