upgrade idea. what do you think?

[clutchdust]

again, the car is a '73 with roundtops. i was on MSA snooping around and what i'm thinking of is the stage 2 or stage 3 cam kit and the 3-2 coated headers. i will be doing a little port work on the head myself and have it milled to increase CR too.

when i have it milled, do i have to shim the cam towers?

i noticed they listed a separate header for the '73 from the '70-72. why?

will the SU's support this if they are rejetted? (sorry, i don't really know what is going on with them. more of a quadrajet kind of guy).

pertronix with a hot coil and new pipe with something like a flowmaster will likely round out the engine mods.

any other suggestions?

BTW, this will not be a daily driver. maybe a little weekend driving but mostly track.

[Ed]

It depends on how much you have the head milled. There is a maximum tolerance before the slack on the timing chain causes problems. Can't remember what it is off the top of my head, I'm guessing it's around .030.

Don't know about the different headers, maybe the exhaust port on the head (round vs. square).

I ran my su's with a header and no problems. I think that the su's will do fine until you go to a larger displacement ie.. 280z.

A big boost in HP would be to do the L28 swap. Save the L24 for going to get groceries.

[clutchdust]

thanks for the input. is .030" the max you can go with the head before you run the risk of getting too thin around a water jacket or the chambers? if you can go deeper, can you either remove a link or get a smaller chain to take out that slack?

what about bore? can the 2.4L be punched out to 2.6 or 2.8? if i have it torn down that far, i could just as well bore it and fit larger pistons. milled head and increase in displacement should give a pretty good bump in CR. what is the CR in stock form anyway?

i'm just looking to massage this little engine enough to make decent power until i can find a suitable 4.3L v-6/T-5 combination to drop in.