compression test results

[91cbseven]

Here are my results for my compression test:
1: 159
2: 160
3: 165
4: 169

So my car has 314,000 I figure these are pretty good numbers for the mileage.

I started this thread to get some opinions on how I should approach my small build for my engine. I'm on a budget (bought a house and getting married) and I wanted to put a cam in, do a valve job and possibly doing a port and polish for some better flow. I'm not sure if I am wasting my time by not completely overhauling the engine but I would like to avoid it. I also wanted to know if a mass amount of air coming out of the valve cover through the oil cap while the engine was running is normal? Is that blow by? I'm open to anything, just looking for reliable horsepower
My plans are just having this car for autocross not looking for a lot of power.

Thanks!

[bigpoppa694lyfe]

New rings and bearings are always a good idea on a high mileage engine. All that head work is useless if you end up blowing rings or throwing a bearing a couple hundered miles later.

[wildBill83]

Also replace your valve seals and reseat them. That will get you better compression. Mine is heavily carbonized but reads 190 across the motor. I have the F22A6, my spare F22A1 has numbers around 160 on two cylinders but it has bad valve seats.

[91cbseven]

New rings and bearings are always a good idea on a high mileage engine. All that head work is useless if you end up blowing rings or throwing a bearing a couple hundered miles later.

Ya I understand that, it would be a complete waste of time if that happened. Thanks!

Also replace your valve seals and reseat them. That will get you better compression. Mine is heavily carbonized but reads 190 across the motor. I have the F22A6, my spare F22A1 has numbers around 160 on two cylinders but it has bad valve seats.

So I could have a lot of carbon build up that makes my compression numbers higher? I guess that would explain the numbers with the miles. Thanks!