HSR, 180cc Lightnings, and an XR276HR Comp roller. With full exhaust , would 24# injectors be good for this combo?

 

for the 383? Yes.

 

for the 350

 

For a 350, you might run a little rich as they came with 22 pph. Nothing a little EPROM reprogramming won't fix

 

I thought 91 Z's came with 18#. would 22# work better? He will be getting a custom chip also when the engine is put back together

 

305 came with 19 pph and 350 came with 22 pph. Who is doing the custom chip? Make sure they make adjustments for it. Also make sure they fine tune it and not just give you one that they burnt. Mine was refined 2 times before I was happy.

 

so do you think stock injectors are big enough for this combo?

 

24 pph will be just fine. Either way you go, you need a custom chip to maximize the car. I would go 24 just to be safe. Who is doing the chip and will they take readings and make adjustments or will they just burn you one and tell you it is fine? When I went to LPE, they took quite a few hours and a few burns to get it nuts on.

 

Not sure who is going to burn the chip yet. either PCMforless or I know a local guy that can do it.

 

I am also trying to reach 12 seconds, I am trying to do it N/A. I want to get the stealth ram but I don't want to get aluminum heads. Is there a huge difference between aluminum and cast iron other than the weight? i was thinkin somewhere around 190cc heads,the stealth ram, a 58mm TB,and i already have the 24lb injectors. The thing i really need right now is a new rear. I have a 2.73 open rear which is holding me up pretty bad, and I have stock 305 heads. those 2 things and i think i could be in the lower 13's. But thats a whole nother story.

anyway, I heard good things about both sets of heads. I would read as much as you can about them, get a lot of advise from other people and then try to decide. My friend has dart heads on his 383 and his loves them. I am going to pick either Dart,AFR,or Pro topline. I hear good things about all of them. And I'm not made of money so I would probably go for (as I always hear) "The best bang for the buck". I wish you luck finding the set of heads you want! Hopefully we could both see the 12's.

 

Don't waste your money on a 58mm TB. you don't need it, 52 at the most unless your making serious power. Also I see in your sig that you are running a performance cam, mind sharing what it is?

 

This is how i weirdly ended up with a great deal. The person i bought my car from bought it for $3000 about 3 months before I bought it. the kid he bought it from swapped the motor and did a bunch of stuff to it. Then the kid i bought it from started having problems with it. He replaced all the sensors and was workin on the car for about a month. He thought the computer went. And i guess he just got tired of working on it, so who bought this kid's mustang. And in class one day he just asked anyone if they wanted to buy his car for $500. So I went home at lunch, got the money, beat someone else to it and now i have a great car. It ended up needing a new distributor and coil. I got the car with the rebuilt motor in it and i know very little so far, I know it was just freshly bored 30 over. It had a cam put it in. It has a forged crank that is 2 sizes over stock. And that it still has the orignal 305 heads. I just recently got the guys number who did the motor work and I am going to contact him ASAP.

 

Anyone can do it. Not anyone can do it well. I had 2 chip burners and both of them did good work. Lingenfelter and www.fasterproms.com both had to burn it and reburn it and reburn it till it was dead on. Anything else is not custom.

 

I am having the local guy burn the chip for my 93 with the 383. he said he will hook up a wide band o2 sensor and hook his laptop the the PCM and we will drive around for a while so he can get all the info he needs to make my chip. This guy really knows what he is doing, he has a 95 TA with 600 RWHP and passes emisions.

 

I was meaning if Money wasnt an issue.