everyone knows, I NEED hElP THANK YOU ALL! Options

[worn]

You may remember me from posts like the squid that ate my transmission. I built an engine and have pretty much solved various problems like leaks and oil pressure and oil temp. It is a 2056 with a 73 web cam + 2.5°.

I had to do some work on the heads. I was shooting for about a little over 8:1 compression, and while I have some uncertainty of deck height I am certain of the head chamber volume all matched to 69 cc ( I would say milliliters). According to CB Performance that would give me a maximum of 8.4 compression.

That is the set up here is the problem. On load I hear a ticking sound, with maybe a tinkling high tone. There are several alternative sources of rattling, but it is coming from the engine bay. The gas here is generally 91 octane. I have enriched the MPS to deliver A/F to around 11:1 at load with part throttle and that has not cured the problem. After break in the car turned more difficultly with the starter so I wonder if the cam may be producing better dynamic compression. The heads overheat if I push air down the road at 70 - they generally don't at 50. Timing is stock.

Question 1. Is this knock/ping/pink(UK)?

Question 2. What are my best options and how quickly must they be instituted. The car is grounded for now.

3 - Thanks!

[john rogers]

I would say the problem is the D-Jet system. Unless you have a modified brain it will probably never work well with A: larger engine and B: a different cam. I have seem several that had the brains reprogrammed by a shop in LA and those engines also had a larger throttle body inlet, larger injectors and larger fuel pump. They did not idle well or run at part throttle but ran like stink at full throttle making about 145 HP or so. In a car that weighed 1800# they worked well.

I would suggest getting Webbers, better distributor and tune it that way.